/* ==========================================================================
   OPAL PACIFIC — CORE DESIGN SYSTEM & FOUNDATIONS (main.css)
   Objective Partnering & Alignment Leadership
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Montserrat:wght@500;600;700;800&family=Playfair+Display:ital,wght@1,400;1,600&display=swap');

:root {
  /* Brand Colors from Opal Logos & Style Guide */
  --color-navy: #2D4353;
  --color-navy-dark: #1F2E3A;
  --color-navy-deep: #16222B;
  --color-navy-light: #3E5A6F;
  --color-navy-surface: #273A48;

  --color-teal: #71999D;
  --color-teal-dark: #55797C;
  --color-teal-light: #8FB2B5;
  --color-teal-tint: rgba(113, 153, 157, 0.12);

  --color-taupe: #ADA297;
  --color-taupe-light: #C4BCB3;
  --color-taupe-dark: #8A7E73;
  --color-taupe-tint: rgba(173, 162, 151, 0.18);

  /* Iridescent Opal Gradient (Logo Accent) */
  --color-opal-start: #DCCBE2;
  --color-opal-end: #C7E2E0;
  --gradient-opal: linear-gradient(135deg, #DCCBE2 0%, #C7E2E0 100%);
  --gradient-opal-glow: linear-gradient(135deg, rgba(220, 203, 226, 0.3) 0%, rgba(199, 226, 224, 0.3) 100%);

  /* Neutrals & Surfaces */
  --color-ink: #1F2E3A;
  --color-ink-muted: #4A5B69;
  --color-ink-soft: #6C7D8B;
  --color-mist: #F4F6F7;
  --color-mist-light: #FAFBFC;
  --color-white: #FFFFFF;
  --color-border: #E1E6EB;
  --color-border-dark: #374E5F;

  /* Status & Accents */
  --color-amber: #D97706;
  --color-amber-bg: #FEF3C7;
  --color-amber-border: #FCD34D;
  --color-green: #059669;
  --color-green-bg: #D1FAE5;

  /* Typography Stacks */
  --font-heading: 'Montserrat', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-motto: 'Playfair Display', Georgia, serif;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 12px 30px rgba(0, 0, 0, 0.12), 0 4px 8px rgba(0, 0, 0, 0.06);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.18), 0 8px 16px rgba(0, 0, 0, 0.08);

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Layout Containers */
  --max-width: 1240px;
  --header-height: 80px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1.0625rem; /* ~17px */
  line-height: 1.65;
  color: var(--color-ink);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, picture, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-teal);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--color-teal-dark);
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

ul, ol {
  list-style-position: inside;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-navy);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.015em;
}

h1 {
  font-size: clamp(2.25rem, 4.5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.025em;
}

h2 {
  font-size: clamp(1.75rem, 3.2vw, 2.5rem);
  letter-spacing: -0.02em;
}

h3 {
  font-size: clamp(1.25rem, 2.2vw, 1.75rem);
}

h4 {
  font-size: 1.25rem;
  font-weight: 600;
}

p {
  margin-block-end: 1.25rem;
}

p:last-child {
  margin-block-end: 0;
}

.kicker {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-teal);
  margin-block-end: 0.75rem;
}

.kicker-light {
  color: var(--color-opal-end);
}

.kicker-taupe {
  color: var(--color-taupe);
}

.motto {
  font-family: var(--font-motto);
  font-style: italic;
  font-weight: 400;
  color: var(--color-teal);
}

.lead {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--color-ink-muted);
  font-weight: 400;
}

/* ==========================================================================
   Layout Containers & Grids
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.container-narrow {
  max-width: 900px;
}

.section {
  padding-block: 5rem;
  position: relative;
}

.section-sm {
  padding-block: 3.5rem;
}

.section-lg {
  padding-block: 7rem;
}

.bg-mist {
  background-color: var(--color-mist);
}

.bg-white {
  background-color: var(--color-white);
}

.bg-navy {
  background-color: var(--color-navy);
  color: var(--color-white);
}

.bg-navy h1, .bg-navy h2, .bg-navy h3, .bg-navy h4 {
  color: var(--color-white);
}

.bg-navy p {
  color: rgba(255, 255, 255, 0.85);
}

.bg-navy-dark {
  background-color: var(--color-navy-dark);
  color: var(--color-white);
}

.bg-navy-dark h1, .bg-navy-dark h2, .bg-navy-dark h3, .bg-navy-dark h4 {
  color: var(--color-white);
}

.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.grid-3 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.grid-4 {
  grid-template-columns: 1fr;
}

@media (min-width: 600px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 768px) {
  .grid-2-fixed {
    grid-template-columns: 1fr 1fr;
  }
}
@media (min-width: 992px) {
  .grid-3-fixed {
    grid-template-columns: repeat(3, 1fr);
  }
  .grid-4-fixed {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ==========================================================================
   Buttons & Interactive Controls
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1;
  padding: 0.9375rem 1.875rem;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-teal);
  color: var(--color-white);
  border-color: var(--color-teal);
  box-shadow: 0 4px 14px rgba(113, 153, 157, 0.35);
}

.btn-primary:hover {
  background-color: var(--color-teal-dark);
  border-color: var(--color-teal-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(113, 153, 157, 0.45);
}

.btn-secondary {
  background-color: var(--color-navy);
  color: var(--color-white);
  border-color: var(--color-navy);
}

.btn-secondary:hover {
  background-color: var(--color-navy-dark);
  border-color: var(--color-navy-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
  background-color: rgba(255, 255, 255, 0.12);
  border-color: var(--color-white);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-outline-navy {
  background-color: transparent;
  color: var(--color-navy);
  border-color: var(--color-navy);
}

.btn-outline-navy:hover {
  background-color: var(--color-navy);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1.125rem 2.25rem;
  font-size: 1.0625rem;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.875rem;
  font-size: 0.8125rem;
  font-family: var(--font-heading);
  font-weight: 600;
  border-radius: var(--radius-full);
  line-height: 1;
}

.badge-teal {
  background-color: var(--color-teal-tint);
  color: var(--color-teal-dark);
  border: 1px solid rgba(113, 153, 157, 0.3);
}

.badge-opal {
  background: var(--gradient-opal);
  color: var(--color-navy-dark);
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(220, 203, 226, 0.4);
}

.badge-amber {
  background-color: var(--color-amber-bg);
  color: var(--color-amber);
  border: 1px solid var(--color-amber-border);
}

.badge-navy {
  background-color: rgba(45, 67, 83, 0.1);
  color: var(--color-navy);
  border: 1px solid rgba(45, 67, 83, 0.2);
}

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-navy { color: var(--color-navy); }
.text-teal { color: var(--color-teal); }
.text-taupe { color: var(--color-taupe); }
.text-muted { color: var(--color-ink-muted); }
.text-white { color: var(--color-white); }
.mt-1 { margin-block-start: 0.5rem; }
.mt-2 { margin-block-start: 1rem; }
.mt-3 { margin-block-start: 1.5rem; }
.mt-4 { margin-block-start: 2rem; }
.mt-5 { margin-block-start: 3rem; }
.mb-1 { margin-block-end: 0.5rem; }
.mb-2 { margin-block-end: 1rem; }
.mb-3 { margin-block-end: 1.5rem; }
.mb-4 { margin-block-end: 2rem; }
.mb-5 { margin-block-end: 3rem; }